Ordained as an Episcopal priest in 1911, Dr. Clark accepted the position of director of the Chapel of the Comforter in Greenwich Village, New York, a mission that abandoned its traditional Christian practices in favor of the teachings of theosophy. A prolific writer and lecturer, Clark stressed in his work the similarities between Eastern and Western religions, and emphasized his belief that unity among religions would bring about a spiritual re-awakening throughout the world. After serving as director of the Chapel of the Comforter for more than forty years, Clark retired in 1950.

Clark's papers document his career as a professor of English, Episcopal priest, Theosophist, and Director of the Chapel of the Comforter in Greenwich Village, N.Y. Consisting of correspondence, lecture notes, and selected writings, the collection chronicles Clark's religious beliefs and his passion for the poetry of Emily Dickinson.